package socket;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.ExecutorService;

public class Server {
    private ServerSocket serverSocket;
    private ExecutorService threadPool;

    public Server(){
        try {
            System.out.println("服务端启动...");
            serverSocket = new ServerSocket(8088);
            System.out.println("服务端启动完毕");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void start() {
        try {
            while(true){
            System.out.println("等待客户端连接...");
            Socket socket = serverSocket.accept();
            System.out.println("一个客户端连接了!!!");
            Runnable r = new ClientHandler(socket);
//            Thread t = new Thread(r);
//            t.start();
            threadPool.execute(r);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Server server = new Server();
        server.start();
    }
    private class ClientHandler implements Runnable{
        private Socket socket;
        private ExecutorService threadPool;
        public ClientHandler(Socket socket){
            this.socket = socket;
        }
        public void run(){
            try {
                InputStream in = socket.getInputStream();
                int len;
                while((len = in.read()) != -1) {
                    byte [] data = new byte[len];
                    in.read(data);
                    String line = new String(data, StandardCharsets.UTF_8);
                    System.out.println("客户端说:"+line);
                }
            }catch(IOException e) {
                System.out.println("客户心态崩了选择大退后台");
            }finally{
                System.out.println("客户下线了");
            }
        }
    }
}
